<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <meta http-equiv="X-UA-Compatible" content="ie=edge" />
    <title>label标签</title>
  </head>
  <body>
    <label for="text"> 用户名:</label> <input type="text" id="text" />
    <br />
    <input type="radio" id="nan" name="sex" /> <label for="nan">男</label>
    <input type="radio" id="nv" name="sex" /> <label for="nv">女</label>
  </body>
</html>
